During National Clean Energy Week 2017, Secretary of Energy Rick Perry spoke about the potential for small modular reactors that might be portable enough to airlift to disaster areas.
Such generators would vastly reduce the ongoing fuel logistics burden. A generator meeting his description was designed, built and tested by the US Army in 1962.
It was called ML-1 (Mobile, Low Power Reactor Number 1.) Vietnam spending prevented ML-2 and follow on development.